Mailing machine



FIG. 1 is a top, front and left side perspective view of a mailing machine showing our new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevation thereof;

FIG. 5 is a right side elevation thereof; and,

FIG. 6 is a rear elevation thereof. 

The ornamental design for a mailing machine, as shown and described. 